full build going in a Jeep Patriot. Mostly budget equipment. The subwoofer is an 8 inch Dayton ultimax/300 watts rms, which will be in a 4th order bandpass with the amplifier built into the box. .5 sealed/.375 at 50 hz. Bandwidth is 30 hz to 85ish hz. the subwoofer amplifier module claims 500 rms, but tables at 370 watts rms. Adequate for this sub hopefully. First time using raw modules in this capacity. The door speakers are 6.5 inch goldwoods claiming 90 watts rms. Those will be mounted in an MDF adapter to replace the factory 6x9s in the doors, which will be somewhat deadened. Still running plans through the ringer for pods. Not quite decided on pods or just deadened doors yet. The tweeters are Dayton 1 inch titanium dome. 40 rms. Both running on their own channels on a 4 channel timpano running at 4 ohms with close to 100 rms per channel. Im betting they don’t quite make what they claim. 90 rms per channel will be adequate. Running all of this active from a pioneer 90prs.